Design tools

Colour Contrast Matrix

Compare WCAG contrast ratios across up to 8 colours in a matrix — filter by AA, AAA, and UI component pass levels.

Text / Background

How it works

Add up to 8 colours and the matrix shows every text-on-background combination with its WCAG 2.1 contrast ratio. Rows are text colours, columns are backgrounds, and each cell renders the pair so you can judge readability at a glance.

Use the filter to show only combinations that pass a specific WCAG level — AA normal text, AA large text, AAA normal, AAA large, or UI components.

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